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Date: Tue, 19 Dec 2023 09:44:55 +0100
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Amit Pundir <amit.pundir@linaro.org>
Cc: Sasha Levin <sashal@kernel.org>, Maxime Ripard <maxime@cerno.tech>,
	Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
	stable <stable@vger.kernel.org>
Subject: Re: Request to revert lt9611uxc fixes from v5.15.y
Message-ID: <2023121931-spool-outlying-4ef9@gregkh>
References: <CAMi1Hd2jWZpZn8O1eP5qCZ2HfLbvBAEJsM5FwZxp-rC3q-V7KQ@mail.gmail.com>
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In-Reply-To: <CAMi1Hd2jWZpZn8O1eP5qCZ2HfLbvBAEJsM5FwZxp-rC3q-V7KQ@mail.gmail.com>

On Tue, Dec 19, 2023 at 01:54:59PM +0530, Amit Pundir wrote:
> Hi Greg,
> 
> The following lt9611uxc fixes in v5.15.139 broke display on RB5 devboard.
> 
> drm/bridge: lt9611uxc: fix the race in the error path
> drm/bridge: lt9611uxc: Register and attach our DSI device at probe
> drm/bridge: lt9611uxc: Switch to devm MIPI-DSI helpers
> 
> Reverting them (git revert -s d0d01bb4a560 29aba28ea195 f53a04579328
> #5.15 SHA Ids) fix the following errors on RB5 and get the display
> working again on v5.15.143.
> 
> lt9611uxc 5-002b: LT9611 revision: 0x17.04.93
> lt9611uxc 5-002b: LT9611 version: 0x43
> lt9611uxc 5-002b: failed to find dsi host
> msm ae00000.mdss: bound ae01000.mdp (ops dpu_ops [msm])
> msm_dsi_manager_register: failed to register mipi dsi host for DSI 0: -517

Great, can you send patches that do the reverts along with the reasoning
why the reverts are needed so that we can queue them up?

thanks,

greg k-h